Cl H4 N O4
      Gottfried C, Schusterius C
      Zeitschrift fur Kristallographie 84 (1932) 65-73
      Die Struktur von Kalium- und Ammoniumperchlorat
      _cod_database_code 1010612
      _database_code_amcsd 0017494

      CELL PARAMETERS:    9.2020   5.8150   7.4490   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    398.593
      Density (g/cm3):      1.890
      MAX. ABS. INTENSITY / VOLUME**2:      22.67419522    
      RIR:      3.906
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.30         78.47        5.7898    1   0   1         4
                19.29         11.24        4.6010    2   0   0         2
                19.36        100.00        4.5837    0   1   1         4
                21.66         35.06        4.1029    1   1   1         8
                22.72         67.41        3.9145    2   0   1         4
                23.89          8.60        3.7245    0   0   2         2
                24.67         54.58        3.6082    2   1   0         4
                25.81         22.51        3.4524    1   0   2         4
                27.47          6.24        3.2473    2   1   1         8
                30.10         29.82        2.9686    1   1   2         8
                30.75          8.28        2.9075    0   2   0         2
                30.89          4.65        2.8949    2   0   2         4
                31.54          1.06        2.8363    3   0   1         4
                34.52          3.84        2.5983    1   2   1         8
                34.61          1.46        2.5915    2   1   2         8
                35.21          4.38        2.5492    3   1   1         8
                37.52         10.98        2.3973    1   0   3         4
                38.00          8.85        2.3677    3   0   2         4
                38.57          3.05        2.3341    2   2   1         8
                40.56          3.06        2.2239    1   2   2         8
                40.71          2.38        2.2163    1   1   3         8
                41.06          6.37        2.1981    4   0   1         4
                42.25          1.87        2.1392    4   1   0         4
                48.53          1.79        1.8759    0   3   1         4
                49.11          2.33        1.8550    4   1   2         8
                49.60          1.44        1.8381    1   3   1         8
                49.78          2.76        1.8317    3   1   3         8
                51.14          1.81        1.7863    2   3   0         4
                52.55          1.39        1.7415    1   1   4         8
                54.27          1.15        1.6902    1   3   2         8
                57.93          1.45        1.5918    3   0   4         4
                64.05          1.77        1.4538    0   4   0         2
                65.09          1.33        1.4329    5   1   3         8
                68.90          1.79        1.3628    2   4   1         8
                84.27          1.04        1.1491    0   5   1         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.